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Finding the Fourth Proportional to 640,484.46, 883,872.03 and 350,096.42

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Solution

The fourth proportional to 640,484.46, 883,872.03 and 350,096.42 is: 483,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,484.46 : 883,872.03 = 350,096.42 : x
  2. Step 2: Convert to fraction form
    640,484.46/883,872.03 = 350,096.42/x
  3. Step 3: Cross multiply
    640,484.46x = 883,872.03 × 350,096.42
  4. Step 4: Simplify right side
    640,484.46x = 309,440,429,021.77
  5. Step 5: Solve for x
    x = 309,440,429,021.77/640,484.46
  6. Step 6: Final answer
    x = 483,134.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.